It’s late here and I need a bit more time to read through and answer the many good points that have emerged.
But I was fascinated by Quad LFO (Surge XT) to allow for polyphonic modulation (see pic). So, by your criterion, this module should be added to the list? Despite this going beyond the original objective, I would concur that it would be really good to highlight diamonds like these.
Perhaps we should make up another (large font, bold) category (e.g. called Inputs for Polyphonic Modulation) for these modules.
